Improvement in machines for forming staple-blank ribbons



' 3 sheet s Sheei I. C. KENISTUN & E. WDODWABD. Machines for FormingStaple Blank Ribbons.

.PatentedMay 5,1874.

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3Sheets--Sheet2. 0. KENISTUN & E. WOUDW ARD, Machines fnrforming StapleBlank Ribhfll1$.'

Patented May 5,1874.

M if 7-41-21... u 1% u u v I 3 Shgets- -S he et3. G. KENISTDN & E.WUUDWARD, mfflfl achines for Forming Staple Blank Ribbons. 40,150,420. vPatentedMay5,1874.

EITED STATES- PATENT Trice.

CHARLES KENISTON, SOMERVILLE, ANDLER'ASTUS WOODWABD, OF

OHARLESTOWN, MASS ASSIGNORS. TO CHARLES KENIS'IION.

IMPROVEMENT IN MACHINES FQR FORMiNG STAPLE-BLANK R lB-BONS.

Specification forming part of Letters Patent No. 150,420, dated May 5,I874 application filed March 14, 1874.

lowing, taken in connection with the drawings which accompany and formpart of this specification, is a description of our invention sufficientto enable those skilled in the art to practice it.

4, United States Letters Patent No. 145,658 have been granted to CharlesKeniston for an improved staple and staple-blank to be used in unitingleather-work; and the present inven tion relates to an organization ofmechanism for forming a staple-blank ribbon that can be used in astaple-driving machine organized in many respects like an ordinarypegging-machine. By the blank-forming mechanism the wire is bent andlaid in regular lengths, one against another, with alternatesemicircular bends at opposite ends of such lengths, each bow at oneedge of the ribbon thus formed constituting the head of a staple, andeach bow at the opposite edge two adjacent points of two adjacentstaples. The invention consists in the organization of mechanism forforming such staple and in the details of such mechanism.

Figure 1 shows the machine in front, elevation. Fig. 2-is a sideelevation of it. Figs. 3 and 4 show the formers. Fig. 5 is a front view,with the plate z removed to show the devices coveredby it. Fig. 6 isvertical section through the line 00 w of Fig. 2, looking from fronttoward the back. Fig. 7 is a vertical section through the line y y ofFig. 2, looking from the back toward the front.

In said drawings, a denotes a stand or frame, at the front end of whichis a head-plate, b, in which are journaled the front ends of theoperating-shafts. At the top of this head is a stud-pin, 0, upon whichis hung a pendent swinging arm, (1, and on the bottom of the head is asimilar pin, 0, upon which is mounted a swinging arm, f. In the face ofthe upper arm is a vertical slot, in which slides a bar, g, and in theface of the other arm is a vertical slot, in which slides a bar, h. Inthe foot of the upper slide is a former, i, and in the top of the underslide is a similar former, k, the two formers, in the lowest position ofeach, standing as seen in Fig. 1. The upperplatehas extending from itsrear sidea pin or roll, I, which enters a cam-gyoove, m, cut in the.front face of a camwheel, n, on the driving-shaft 0, and. the lowerplate is jointed to an. arm, 19, extending from a rocker-shaft, g, fromwhich extends another arm, a", that is jointed to one arm of. a lever,s, the other arm of which has extending from it, and into a cam-groove,t, of a cam-wheel, a, on the driving-shaft, a pin carrying a roll ortruck, 41, the rotation of the two cams upon the driving-shaft impartingthe respective vertical movements to the two slides and their formers i70. These formers are upon the adjacent or inner faces of twoshank-pieces, w, fixed to the respective slides, the formers beingprojections from the shanks, and being in the same plane.

The wire 00 passes between the adjacent curved ends of the two formersfrom a throat formed between the front face of the two arms (I f and acap-plate, z.

In addition to the vertical movements im-' parted to the two slides,each has a swing movement with its arm, the respective swing movementsbeing imparted as follows; From the two arms, respectively, extend twoears, a 12 having slots 0 d, and from these cars pins 0 f extend intotwo slots, h of opposite arms i 70 extending from a rocker-shaft, 1 theopposite end of this shaft having an arm, m", from which a pin, nprojects into a camslot, 0 of a cam-wheel, 19 on the driving-shaft 0.

At each rotation of the driving-shaft both formers act, one to produce abend of the wire in one direction, and the other to produce the nextbend in the opposite direction. Each former in moving to bend the wirebends it over the adjacent or outer side of the other former, which,during the operation, is sta- -tionary, and as soon as either former hasacted to produce the bend the other former with draws, so that one ishigher than the other. Then the rocker-shaft l is turned, and its slotsg h, acting upon the pins 6 f swing the two arms 6 k one in onedirection and the other in the opposite direction, and so as to move thelast-acting former up against the wire-length formed by it, to forcesuch length up against the previously-formed length, and the otherformer back to carry its point beyond the point of the first former.Then, while the first former remains stationary, the second is movedvertically, and bends the wire over the point and side of the first.Then the first withdraws, and the rocker-shaft 1 then turns in theopposite direction, causing the last-actingformer to force the lengthbent by it up against the previouslybent length, and bringing the otherinto position to form another length by its next vertical movement. Asthe ribbon emerges from the machine it passes between a pair ofholdbackrolls, 1*, the stress of which upon the ribbon is made such asto permit the ribbon topass only with the bends tightly compressedtogether. The flatness of the ribbon is insured by the walls of theplates between which it is formed and passes, it being, in fact, walledin between top and bottom and side surfaces.

The construction and arrangement of all the parts shown may be modified,the essential features of the mechanism being the forming mechanism andmechanism for imparting the requisite movement to bend the wire and formthe ribbon.

As the bends are formed they pass between a cap-plate, s and a platebehind the same,

the adjacent surfaces of the plates being distant to an extent equal tothe thickness of the wire, these plates insuring the formation of astraight and uniformly thick ribbon. These plates 8 are shown with teethor inclined projections. The plates are simply cap-plates, their innersurfaces forming walls, and they are toothed simply the better to permitthe relative movements, and the better in such movements to serveuninterruptedly as a wall.

We claim 1. The combination of the two formers z k, constructed asdescribed, with suitable mechanism for imparting to them the relativevertical and lateral movements to bend the wire into the ribbon form,substantially as shown and described.

2. In combination with the formers, the rolls 1, that hold back theformed wire, and the walls or plates between which the wire is forcedafter being bent, substantially as described.

. Executed this 12th day of December, A. D. 1873.

CHARLES KENISTON. ERASTUS WOODWARD.

